tags: mus-407 sound-reproduction-systems

Microphones

Microphones are [audio hardware] devices that convert acoustic energy from [sound] to [electrical] energy, outputting [audio signals].

Prominent types of microphones based on method of conversion:

• [Dynamic microphones]
• [Condenser microphones]

Microphones also differ by other characteristics:

• [Polar pattern]
• [Frequency response]
• [Diaphragm size]

Other types of microphones:

• Ribbon mic: dynamic mic with conductive metal ribbon suspended in magnetic field
• Electret mic: like condenser, but with permanently charged material, requires no external power supply
• USB mic: connects directly to computer with built-in [preamplifier] and analog-to-digital converter
• Contact mic: affixes to solid material, picks up vibrations through physical contact
• Carbon mic: pressure on carbon granules creates variations in electrical resistance (old design, infrequently used today)

Sources

• MUS 407 Sound Reproduction Systems